External (mathematics)
WordNet
adjective
(1) Happening or arising or located outside or beyond some limits or especially surface
"The external auditory canal"
"External pressures"
(2) Purely outward or superficial
"External composure"
"An external concern for reputation"- A.R.Gurney,Jr.
(3) From or between other countries
"External commerce"
"International trade"
"Developing nations need outside help"
(4) Coming from the outside
"Extraneous light in the camera spoiled the photograph"
"Relying upon an extraneous income"
"Disdaining outside pressure groups"
noun
(5) Outward features
"He enjoyed the solemn externals of religion"
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